22. 这个故事发生在一个令人昏昏欲睡的夏日午后 

The story            on a drowsy summer afternoon.

21. 突然，我发现一条鲨鱼跟在我们的船后面。

______ __________  ________  ________    I found that a shark was following our boat.

20. A sweater is used for        (keep) warm.

19. The soup tastes a little       (salt).

18. There are many       (hero) in our country. We should learn from them.

17. The supermarket is friendly with all       (custom).

16. Our school bought some physics      (instrument) last week.

15. What's the        (目的)of your composition? 

12. The       (锁)is broken. You must buy one at once.

14. Jill      (提到)something about a party on Saturday.